1 /* 2 * linux/include/linux/ufs_fs.h 3 * 4 * Copyright (C) 1996 5 * Adrian Rodriguez (adrian@franklins-tower.rutgers.edu) 6 * Laboratory for Computer Science Research Computing Facility 7 * Rutgers, The State University of New Jersey 8 * 9 * Clean swab support by Fare <fare@tunes.org> 10 * just hope no one is using NNUUXXI on __?64 structure elements 11 * 64-bit clean thanks to Maciej W. Rozycki <macro@ds2.pg.gda.pl> 12 * 13 * 4.4BSD (FreeBSD) support added on February 1st 1998 by 14 * Niels Kristian Bech Jensen <nkbj@image.dk> partially based 15 * on code by Martin von Loewis <martin@mira.isdn.cs.tu-berlin.de>. 16 * 17 * NeXTstep support added on February 5th 1998 by 18 * Niels Kristian Bech Jensen <nkbj@image.dk>. 19 * 20 * Write support by Daniel Pirkl <daniel.pirkl@email.cz> 21 * 22 * HP/UX hfs filesystem support added by 23 * Martin K. Petersen <mkp@mkp.net>, August 1999 24 * 25 */ 26 27 #ifndef __LINUX_UFS_FS_H 28 #define __LINUX_UFS_FS_H 29 30 #include <linux/types.h> 31 #include <linux/kernel.h> 32 #include <linux/time.h> 33 #include <linux/stat.h> 34 35 #define UFS_BBLOCK 0 36 #define UFS_BBSIZE 8192 37 #define UFS_SBLOCK 8192 38 #define UFS_SBSIZE 8192 39 40 #define UFS_SECTOR_SIZE 512 41 #define UFS_SECTOR_BITS 9 42 #define UFS_MAGIC 0x00011954 43 #define UFS_CIGAM 0x54190100 /* byteswapped MAGIC */ 44 45 46 /* HP specific MAGIC values */ 47 48 #define UFS_MAGIC_LFN 0x00095014 /* fs supports filenames > 14 chars */ 49 #define UFS_CIGAM_LFN 0x14500900 /* srahc 41 < semanelif stroppus sf */ 50 51 #define UFS_MAGIC_SEC 0x00612195 /* B1 security fs */ 52 #define UFS_CIGAM_SEC 0x95216100 53 54 #define UFS_MAGIC_FEA 0x00195612 /* fs_featurebits supported */ 55 #define UFS_CIGAM_FEA 0x12561900 56 57 #define UFS_MAGIC_4GB 0x05231994 /* fs > 4 GB && fs_featurebits */ 58 #define UFS_CIGAM_4GB 0x94192305 59 60 /* Seems somebody at HP goofed here. B1 and lfs are both 0x2 !?! */ 61 #define UFS_FSF_LFN 0x00000001 /* long file names */ 62 #define UFS_FSF_B1 0x00000002 /* B1 security */ 63 #define UFS_FSF_LFS 0x00000002 /* large files */ 64 #define UFS_FSF_LUID 0x00000004 /* large UIDs */ 65 66 /* End of HP stuff */ 67 68 69 #define UFS_BSIZE 8192 70 #define UFS_MINBSIZE 4096 71 #define UFS_FSIZE 1024 72 #define UFS_MAXFRAG (UFS_BSIZE / UFS_FSIZE) 73 74 #define UFS_NDADDR 12 75 #define UFS_NINDIR 3 76 77 #define UFS_IND_BLOCK (UFS_NDADDR + 0) 78 #define UFS_DIND_BLOCK (UFS_NDADDR + 1) 79 #define UFS_TIND_BLOCK (UFS_NDADDR + 2) 80 81 #define UFS_NDIR_FRAGMENT (UFS_NDADDR << uspi->s_fpbshift) 82 #define UFS_IND_FRAGMENT (UFS_IND_BLOCK << uspi->s_fpbshift) 83 #define UFS_DIND_FRAGMENT (UFS_DIND_BLOCK << uspi->s_fpbshift) 84 #define UFS_TIND_FRAGMENT (UFS_TIND_BLOCK << uspi->s_fpbshift) 85 86 #define UFS_ROOTINO 2 87 #define UFS_FIRST_INO (UFS_ROOTINO + 1) 88 89 #define UFS_USEEFT ((__u16)65535) 90 91 #define UFS_FSOK 0x7c269d38 92 #define UFS_FSACTIVE ((char)0x00) 93 #define UFS_FSCLEAN ((char)0x01) 94 #define UFS_FSSTABLE ((char)0x02) 95 #define UFS_FSOSF1 ((char)0x03) /* is this correct for DEC OSF/1? */ 96 #define UFS_FSBAD ((char)0xff) 97 98 /* From here to next blank line, s_flags for ufs_sb_info */ 99 /* directory entry encoding */ 100 #define UFS_DE_MASK 0x00000010 /* mask for the following */ 101 #define UFS_DE_OLD 0x00000000 102 #define UFS_DE_44BSD 0x00000010 103 /* uid encoding */ 104 #define UFS_UID_MASK 0x00000060 /* mask for the following */ 105 #define UFS_UID_OLD 0x00000000 106 #define UFS_UID_44BSD 0x00000020 107 #define UFS_UID_EFT 0x00000040 108 /* superblock state encoding */ 109 #define UFS_ST_MASK 0x00000700 /* mask for the following */ 110 #define UFS_ST_OLD 0x00000000 111 #define UFS_ST_44BSD 0x00000100 112 #define UFS_ST_SUN 0x00000200 113 #define UFS_ST_SUNx86 0x00000400 114 /*cylinder group encoding */ 115 #define UFS_CG_MASK 0x00003000 /* mask for the following */ 116 #define UFS_CG_OLD 0x00000000 117 #define UFS_CG_44BSD 0x00002000 118 #define UFS_CG_SUN 0x00001000 119 120 /* fs_inodefmt options */ 121 #define UFS_42INODEFMT -1 122 #define UFS_44INODEFMT 2 123 124 /* mount options */ 125 #define UFS_MOUNT_ONERROR 0x0000000F 126 #define UFS_MOUNT_ONERROR_PANIC 0x00000001 127 #define UFS_MOUNT_ONERROR_LOCK 0x00000002 128 #define UFS_MOUNT_ONERROR_UMOUNT 0x00000004 129 #define UFS_MOUNT_ONERROR_REPAIR 0x00000008 130 131 #define UFS_MOUNT_UFSTYPE 0x00000FF0 132 #define UFS_MOUNT_UFSTYPE_OLD 0x00000010 133 #define UFS_MOUNT_UFSTYPE_44BSD 0x00000020 134 #define UFS_MOUNT_UFSTYPE_SUN 0x00000040 135 #define UFS_MOUNT_UFSTYPE_NEXTSTEP 0x00000080 136 #define UFS_MOUNT_UFSTYPE_NEXTSTEP_CD 0x00000100 137 #define UFS_MOUNT_UFSTYPE_OPENSTEP 0x00000200 138 #define UFS_MOUNT_UFSTYPE_SUNx86 0x00000400 139 #define UFS_MOUNT_UFSTYPE_HP 0x00000800 140 141 #define ufs_clear_opt(o,opt) o &= ~UFS_MOUNT_##opt 142 #define ufs_set_opt(o,opt) o |= UFS_MOUNT_##opt 143 #define ufs_test_opt(o,opt) ((o) & UFS_MOUNT_##opt) 144 145 /* 146 * MINFREE gives the minimum acceptable percentage of file system 147 * blocks which may be free. If the freelist drops below this level 148 * only the superuser may continue to allocate blocks. This may 149 * be set to 0 if no reserve of free blocks is deemed necessary, 150 * however throughput drops by fifty percent if the file system 151 * is run at between 95% and 100% full; thus the minimum default 152 * value of fs_minfree is 5%. However, to get good clustering 153 * performance, 10% is a better choice. hence we use 10% as our 154 * default value. With 10% free space, fragmentation is not a 155 * problem, so we choose to optimize for time. 156 */ 157 #define UFS_MINFREE 5 158 #define UFS_DEFAULTOPT UFS_OPTTIME 159 160 /* 161 * Turn file system block numbers into disk block addresses. 162 * This maps file system blocks to device size blocks. 163 */ 164 #define ufs_fsbtodb(uspi, b) ((b) << (uspi)->s_fsbtodb) 165 #define ufs_dbtofsb(uspi, b) ((b) >> (uspi)->s_fsbtodb) 166 167 /* 168 * Cylinder group macros to locate things in cylinder groups. 169 * They calc file system addresses of cylinder group data structures. 170 */ 171 #define ufs_cgbase(c) (uspi->s_fpg * (c)) 172 #define ufs_cgstart(c) (ufs_cgbase(c) + uspi->s_cgoffset * ((c) & ~uspi->s_cgmask)) 173 #define ufs_cgsblock(c) (ufs_cgstart(c) + uspi->s_sblkno) /* super blk */ 174 #define ufs_cgcmin(c) (ufs_cgstart(c) + uspi->s_cblkno) /* cg block */ 175 #define ufs_cgimin(c) (ufs_cgstart(c) + uspi->s_iblkno) /* inode blk */ 176 #define ufs_cgdmin(c) (ufs_cgstart(c) + uspi->s_dblkno) /* 1st data */ 177 178 /* 179 * Macros for handling inode numbers: 180 * inode number to file system block offset. 181 * inode number to cylinder group number. 182 * inode number to file system block address. 183 */ 184 #define ufs_inotocg(x) ((x) / uspi->s_ipg) 185 #define ufs_inotocgoff(x) ((x) % uspi->s_ipg) 186 #define ufs_inotofsba(x) (ufs_cgimin(ufs_inotocg(x)) + ufs_inotocgoff(x) / uspi->s_inopf) 187 #define ufs_inotofsbo(x) ((x) % uspi->s_inopf) 188 189 /* 190 * Give cylinder group number for a file system block. 191 * Give cylinder group block number for a file system block. 192 */ 193 #define ufs_dtog(d) ((d) / uspi->s_fpg) 194 #define ufs_dtogd(d) ((d) % uspi->s_fpg) 195 196 /* 197 * Compute the cylinder and rotational position of a cyl block addr. 198 */ 199 #define ufs_cbtocylno(bno) \ 200 ((bno) * uspi->s_nspf / uspi->s_spc) 201 #define ufs_cbtorpos(bno) \ 202 ((((bno) * uspi->s_nspf % uspi->s_spc / uspi->s_nsect \ 203 * uspi->s_trackskew + (bno) * uspi->s_nspf % uspi->s_spc \ 204 % uspi->s_nsect * uspi->s_interleave) % uspi->s_nsect \ 205 * uspi->s_nrpos) / uspi->s_npsect) 206 207 /* 208 * The following macros optimize certain frequently calculated 209 * quantities by using shifts and masks in place of divisions 210 * modulos and multiplications. 211 */ 212 #define ufs_blkoff(loc) ((loc) & uspi->s_qbmask) 213 #define ufs_fragoff(loc) ((loc) & uspi->s_qfmask) 214 #define ufs_lblktosize(blk) ((blk) << uspi->s_bshift) 215 #define ufs_lblkno(loc) ((loc) >> uspi->s_bshift) 216 #define ufs_numfrags(loc) ((loc) >> uspi->s_fshift) 217 #define ufs_blkroundup(size) (((size) + uspi->s_qbmask) & uspi->s_bmask) 218 #define ufs_fragroundup(size) (((size) + uspi->s_qfmask) & uspi->s_fmask) 219 #define ufs_fragstoblks(frags) ((frags) >> uspi->s_fpbshift) 220 #define ufs_blkstofrags(blks) ((blks) << uspi->s_fpbshift) 221 #define ufs_fragnum(fsb) ((fsb) & uspi->s_fpbmask) 222 #define ufs_blknum(fsb) ((fsb) & ~uspi->s_fpbmask) 223 224 #define UFS_MAXNAMLEN 255 225 #define UFS_MAXMNTLEN 512 226 #define UFS_MAXCSBUFS 31 227 #define UFS_LINK_MAX 32000 228 229 /* 230 * UFS_DIR_PAD defines the directory entries boundaries 231 * (must be a multiple of 4) 232 */ 233 #define UFS_DIR_PAD 4 234 #define UFS_DIR_ROUND (UFS_DIR_PAD - 1) 235 #define UFS_DIR_REC_LEN(name_len) (((name_len) + 1 + 8 + UFS_DIR_ROUND) & ~UFS_DIR_ROUND) 236 237 struct ufs_timeval { 238 __s32 tv_sec; 239 __s32 tv_usec; 240 }; 241 242 struct ufs_dir_entry { 243 __u32 d_ino; /* inode number of this entry */ 244 __u16 d_reclen; /* length of this entry */ 245 union { 246 __u16 d_namlen; /* actual length of d_name */ 247 struct { 248 __u8 d_type; /* file type */ 249 __u8 d_namlen; /* length of string in d_name */ 250 } d_44; 251 } d_u; 252 __u8 d_name[UFS_MAXNAMLEN + 1]; /* file name */ 253 }; 254 255 struct ufs_csum { 256 __u32 cs_ndir; /* number of directories */ 257 __u32 cs_nbfree; /* number of free blocks */ 258 __u32 cs_nifree; /* number of free inodes */ 259 __u32 cs_nffree; /* number of free frags */ 260 }; 261 262 /* 263 * This is the actual superblock, as it is laid out on the disk. 264 */ 265 struct ufs_super_block { 266 __u32 fs_link; /* UNUSED */ 267 __u32 fs_rlink; /* UNUSED */ 268 __u32 fs_sblkno; /* addr of super-block in filesys */ 269 __u32 fs_cblkno; /* offset of cyl-block in filesys */ 270 __u32 fs_iblkno; /* offset of inode-blocks in filesys */ 271 __u32 fs_dblkno; /* offset of first data after cg */ 272 __u32 fs_cgoffset; /* cylinder group offset in cylinder */ 273 __u32 fs_cgmask; /* used to calc mod fs_ntrak */ 274 __u32 fs_time; /* last time written -- time_t */ 275 __u32 fs_size; /* number of blocks in fs */ 276 __u32 fs_dsize; /* number of data blocks in fs */ 277 __u32 fs_ncg; /* number of cylinder groups */ 278 __u32 fs_bsize; /* size of basic blocks in fs */ 279 __u32 fs_fsize; /* size of frag blocks in fs */ 280 __u32 fs_frag; /* number of frags in a block in fs */ 281 /* these are configuration parameters */ 282 __u32 fs_minfree; /* minimum percentage of free blocks */ 283 __u32 fs_rotdelay; /* num of ms for optimal next block */ 284 __u32 fs_rps; /* disk revolutions per second */ 285 /* these fields can be computed from the others */ 286 __u32 fs_bmask; /* ``blkoff'' calc of blk offsets */ 287 __u32 fs_fmask; /* ``fragoff'' calc of frag offsets */ 288 __u32 fs_bshift; /* ``lblkno'' calc of logical blkno */ 289 __u32 fs_fshift; /* ``numfrags'' calc number of frags */ 290 /* these are configuration parameters */ 291 __u32 fs_maxcontig; /* max number of contiguous blks */ 292 __u32 fs_maxbpg; /* max number of blks per cyl group */ 293 /* these fields can be computed from the others */ 294 __u32 fs_fragshift; /* block to frag shift */ 295 __u32 fs_fsbtodb; /* fsbtodb and dbtofsb shift constant */ 296 __u32 fs_sbsize; /* actual size of super block */ 297 __u32 fs_csmask; /* csum block offset */ 298 __u32 fs_csshift; /* csum block number */ 299 __u32 fs_nindir; /* value of NINDIR */ 300 __u32 fs_inopb; /* value of INOPB */ 301 __u32 fs_nspf; /* value of NSPF */ 302 /* yet another configuration parameter */ 303 __u32 fs_optim; /* optimization preference, see below */ 304 /* these fields are derived from the hardware */ 305 union { 306 struct { 307 __u32 fs_npsect; /* # sectors/track including spares */ 308 } fs_sun; 309 struct { 310 __s32 fs_state; /* file system state time stamp */ 311 } fs_sunx86; 312 } fs_u1; 313 __u32 fs_interleave; /* hardware sector interleave */ 314 __u32 fs_trackskew; /* sector 0 skew, per track */ 315 /* a unique id for this filesystem (currently unused and unmaintained) */ 316 /* In 4.3 Tahoe this space is used by fs_headswitch and fs_trkseek */ 317 /* Neither of those fields is used in the Tahoe code right now but */ 318 /* there could be problems if they are. */ 319 __u32 fs_id[2]; /* file system id */ 320 /* sizes determined by number of cylinder groups and their sizes */ 321 __u32 fs_csaddr; /* blk addr of cyl grp summary area */ 322 __u32 fs_cssize; /* size of cyl grp summary area */ 323 __u32 fs_cgsize; /* cylinder group size */ 324 /* these fields are derived from the hardware */ 325 __u32 fs_ntrak; /* tracks per cylinder */ 326 __u32 fs_nsect; /* sectors per track */ 327 __u32 fs_spc; /* sectors per cylinder */ 328 /* this comes from the disk driver partitioning */ 329 __u32 fs_ncyl; /* cylinders in file system */ 330 /* these fields can be computed from the others */ 331 __u32 fs_cpg; /* cylinders per group */ 332 __u32 fs_ipg; /* inodes per group */ 333 __u32 fs_fpg; /* blocks per group * fs_frag */ 334 /* this data must be re-computed after crashes */ 335 struct ufs_csum fs_cstotal; /* cylinder summary information */ 336 /* these fields are cleared at mount time */ 337 __s8 fs_fmod; /* super block modified flag */ 338 __s8 fs_clean; /* file system is clean flag */ 339 __s8 fs_ronly; /* mounted read-only flag */ 340 __s8 fs_flags; /* currently unused flag */ 341 __s8 fs_fsmnt[UFS_MAXMNTLEN]; /* name mounted on */ 342 /* these fields retain the current block allocation info */ 343 __u32 fs_cgrotor; /* last cg searched */ 344 __u32 fs_csp[UFS_MAXCSBUFS]; /* list of fs_cs info buffers */ 345 __u32 fs_maxcluster; 346 __u32 fs_cpc; /* cyl per cycle in postbl */ 347 __u16 fs_opostbl[16][8]; /* old rotation block list head */ 348 union { 349 struct { 350 __s32 fs_sparecon[53];/* reserved for future constants */ 351 __s32 fs_reclaim; 352 __s32 fs_sparecon2[1]; 353 __s32 fs_state; /* file system state time stamp */ 354 __u32 fs_qbmask[2]; /* ~usb_bmask */ 355 __u32 fs_qfmask[2]; /* ~usb_fmask */ 356 } fs_sun; 357 struct { 358 __s32 fs_sparecon[53];/* reserved for future constants */ 359 __s32 fs_reclaim; 360 __s32 fs_sparecon2[1]; 361 __u32 fs_npsect; /* # sectors/track including spares */ 362 __u32 fs_qbmask[2]; /* ~usb_bmask */ 363 __u32 fs_qfmask[2]; /* ~usb_fmask */ 364 } fs_sunx86; 365 struct { 366 __s32 fs_sparecon[50];/* reserved for future constants */ 367 __s32 fs_contigsumsize;/* size of cluster summary array */ 368 __s32 fs_maxsymlinklen;/* max length of an internal symlink */ 369 __s32 fs_inodefmt; /* format of on-disk inodes */ 370 __u32 fs_maxfilesize[2]; /* max representable file size */ 371 __u32 fs_qbmask[2]; /* ~usb_bmask */ 372 __u32 fs_qfmask[2]; /* ~usb_fmask */ 373 __s32 fs_state; /* file system state time stamp */ 374 } fs_44; 375 } fs_u2; 376 __s32 fs_postblformat; /* format of positional layout tables */ 377 __s32 fs_nrpos; /* number of rotational positions */ 378 __s32 fs_postbloff; /* (__s16) rotation block list head */ 379 __s32 fs_rotbloff; /* (__u8) blocks for each rotation */ 380 __s32 fs_magic; /* magic number */ 381 __u8 fs_space[1]; /* list of blocks for each rotation */ 382 }; 383 384 /* 385 * Preference for optimization. 386 */ 387 #define UFS_OPTTIME 0 /* minimize allocation time */ 388 #define UFS_OPTSPACE 1 /* minimize disk fragmentation */ 389 390 /* 391 * Rotational layout table format types 392 */ 393 #define UFS_42POSTBLFMT -1 /* 4.2BSD rotational table format */ 394 #define UFS_DYNAMICPOSTBLFMT 1 /* dynamic rotational table format */ 395 396 /* 397 * Convert cylinder group to base address of its global summary info. 398 */ 399 #define fs_cs(indx) \ 400 u.ufs_sb.s_csp[(indx) >> uspi->s_csshift][(indx) & ~uspi->s_csmask] 401 402 /* 403 * Cylinder group block for a file system. 404 * 405 * Writable fields in the cylinder group are protected by the associated 406 * super block lock fs->fs_lock. 407 */ 408 #define CG_MAGIC 0x090255 409 #define ufs_cg_chkmagic(sb, ucg) \ 410 (fs32_to_cpu((sb), (ucg)->cg_magic) == CG_MAGIC) 411 412 /* 413 * size of this structure is 172 B 414 */ 415 struct ufs_cylinder_group { 416 __u32 cg_link; /* linked list of cyl groups */ 417 __u32 cg_magic; /* magic number */ 418 __u32 cg_time; /* time last written */ 419 __u32 cg_cgx; /* we are the cgx'th cylinder group */ 420 __u16 cg_ncyl; /* number of cyl's this cg */ 421 __u16 cg_niblk; /* number of inode blocks this cg */ 422 __u32 cg_ndblk; /* number of data blocks this cg */ 423 struct ufs_csum cg_cs; /* cylinder summary information */ 424 __u32 cg_rotor; /* position of last used block */ 425 __u32 cg_frotor; /* position of last used frag */ 426 __u32 cg_irotor; /* position of last used inode */ 427 __u32 cg_frsum[UFS_MAXFRAG]; /* counts of available frags */ 428 __u32 cg_btotoff; /* (__u32) block totals per cylinder */ 429 __u32 cg_boff; /* (short) free block positions */ 430 __u32 cg_iusedoff; /* (char) used inode map */ 431 __u32 cg_freeoff; /* (u_char) free block map */ 432 __u32 cg_nextfreeoff; /* (u_char) next available space */ 433 union { 434 struct { 435 __u32 cg_clustersumoff; /* (u_int32) counts of avail clusters */ 436 __u32 cg_clusteroff; /* (u_int8) free cluster map */ 437 __u32 cg_nclusterblks; /* number of clusters this cg */ 438 __u32 cg_sparecon[13]; /* reserved for future use */ 439 } cg_44; 440 __u32 cg_sparecon[16]; /* reserved for future use */ 441 } cg_u; 442 __u8 cg_space[1]; /* space for cylinder group maps */ 443 /* actually longer */ 444 }; 445 446 /* 447 * structure of an on-disk inode 448 */ 449 struct ufs_inode { 450 __u16 ui_mode; /* 0x0 */ 451 __u16 ui_nlink; /* 0x2 */ 452 union { 453 struct { 454 __u16 ui_suid; /* 0x4 */ 455 __u16 ui_sgid; /* 0x6 */ 456 } oldids; 457 __u32 ui_inumber; /* 0x4 lsf: inode number */ 458 __u32 ui_author; /* 0x4 GNU HURD: author */ 459 } ui_u1; 460 __u64 ui_size; /* 0x8 */ 461 struct ufs_timeval ui_atime; /* 0x10 access */ 462 struct ufs_timeval ui_mtime; /* 0x18 modification */ 463 struct ufs_timeval ui_ctime; /* 0x20 creation */ 464 union { 465 struct { 466 __u32 ui_db[UFS_NDADDR];/* 0x28 data blocks */ 467 __u32 ui_ib[UFS_NINDIR];/* 0x58 indirect blocks */ 468 } ui_addr; 469 __u8 ui_symlink[4*(UFS_NDADDR+UFS_NINDIR)];/* 0x28 fast symlink */ 470 } ui_u2; 471 __u32 ui_flags; /* 0x64 immutable, append-only... */ 472 __u32 ui_blocks; /* 0x68 blocks in use */ 473 __u32 ui_gen; /* 0x6c like ext2 i_version, for NFS support */ 474 union { 475 struct { 476 __u32 ui_shadow; /* 0x70 shadow inode with security data */ 477 __u32 ui_uid; /* 0x74 long EFT version of uid */ 478 __u32 ui_gid; /* 0x78 long EFT version of gid */ 479 __u32 ui_oeftflag; /* 0x7c reserved */ 480 } ui_sun; 481 struct { 482 __u32 ui_uid; /* 0x70 File owner */ 483 __u32 ui_gid; /* 0x74 File group */ 484 __s32 ui_spare[2]; /* 0x78 reserved */ 485 } ui_44; 486 struct { 487 __u32 ui_uid; /* 0x70 */ 488 __u32 ui_gid; /* 0x74 */ 489 __u16 ui_modeh; /* 0x78 mode high bits */ 490 __u16 ui_spare; /* 0x7A unused */ 491 __u32 ui_trans; /* 0x7c filesystem translator */ 492 } ui_hurd; 493 } ui_u3; 494 }; 495 496 /* FreeBSD has these in sys/stat.h */ 497 /* ui_flags that can be set by a file owner */ 498 #define UFS_UF_SETTABLE 0x0000ffff 499 #define UFS_UF_NODUMP 0x00000001 /* do not dump */ 500 #define UFS_UF_IMMUTABLE 0x00000002 /* immutable (can't "change") */ 501 #define UFS_UF_APPEND 0x00000004 /* append-only */ 502 #define UFS_UF_OPAQUE 0x00000008 /* directory is opaque (unionfs) */ 503 #define UFS_UF_NOUNLINK 0x00000010 /* can't be removed or renamed */ 504 /* ui_flags that only root can set */ 505 #define UFS_SF_SETTABLE 0xffff0000 506 #define UFS_SF_ARCHIVED 0x00010000 /* archived */ 507 #define UFS_SF_IMMUTABLE 0x00020000 /* immutable (can't "change") */ 508 #define UFS_SF_APPEND 0x00040000 /* append-only */ 509 #define UFS_SF_NOUNLINK 0x00100000 /* can't be removed or renamed */ 510 511 #ifdef __KERNEL__ 512 513 /* balloc.c */ 514 extern void ufs_free_fragments (struct inode *, unsigned, unsigned); 515 extern void ufs_free_blocks (struct inode *, unsigned, unsigned); 516 extern unsigned ufs_new_fragments (struct inode *, u32 *, unsigned, unsigned, unsigned, int *); 517 518 /* cylinder.c */ 519 extern struct ufs_cg_private_info * ufs_load_cylinder (struct super_block *, unsigned); 520 extern void ufs_put_cylinder (struct super_block *, unsigned); 521 522 /* dir.c */ 523 extern struct inode_operations ufs_dir_inode_operations; 524 extern int ufs_check_dir_entry (const char *, struct inode *, struct ufs_dir_entry *, struct buffer_head *, unsigned long); 525 extern int ufs_add_link (struct dentry *, struct inode *); 526 extern ino_t ufs_inode_by_name(struct inode *, struct dentry *); 527 extern int ufs_make_empty(struct inode *, struct inode *); 528 extern struct ufs_dir_entry * ufs_find_entry (struct dentry *, struct buffer_head **); 529 extern int ufs_delete_entry (struct inode *, struct ufs_dir_entry *, struct buffer_head *); 530 extern int ufs_empty_dir (struct inode *); 531 extern struct ufs_dir_entry * ufs_dotdot (struct inode *, struct buffer_head **); 532 extern void ufs_set_link(struct inode *, struct ufs_dir_entry *, struct buffer_head *, struct inode *); 533 534 /* file.c */ 535 extern struct inode_operations ufs_file_inode_operations; 536 extern struct file_operations ufs_file_operations; 537 538 extern struct address_space_operations ufs_aops; 539 540 /* ialloc.c */ 541 extern void ufs_free_inode (struct inode *inode); 542 extern struct inode * ufs_new_inode (const struct inode *, int); 543 544 /* inode.c */ 545 extern int ufs_frag_map (struct inode *, int); 546 extern void ufs_read_inode (struct inode *); 547 extern void ufs_put_inode (struct inode *); 548 extern void ufs_write_inode (struct inode *, int); 549 extern int ufs_sync_inode (struct inode *); 550 extern void ufs_delete_inode (struct inode *); 551 extern struct buffer_head * ufs_getfrag (struct inode *, unsigned, int, int *); 552 extern struct buffer_head * ufs_bread (struct inode *, unsigned, int, int *); 553 554 /* namei.c */ 555 extern struct file_operations ufs_dir_operations; 556 557 /* super.c */ 558 extern void ufs_warning (struct super_block *, const char *, const char *, ...) __attribute__ ((format (printf, 3, 4))); 559 extern void ufs_error (struct super_block *, const char *, const char *, ...) __attribute__ ((format (printf, 3, 4))); 560 extern void ufs_panic (struct super_block *, const char *, const char *, ...) __attribute__ ((format (printf, 3, 4))); 561 extern void ufs_write_super (struct super_block *); 562 563 /* symlink.c */ 564 extern struct inode_operations ufs_fast_symlink_inode_operations; 565 566 /* truncate.c */ 567 extern void ufs_truncate (struct inode *); 568 569 #endif /* __KERNEL__ */ 570 571 #endif /* __LINUX_UFS_FS_H */ 572